The following table provides summary statistics for contract job vacancies advertised in Cardiff with a requirement for JavaScript skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JavaScript over the 3 months to 28 June 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

JavaScript (including ECMAScript)
South Wales / Cardiff
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 18 9 8
Rank change year-on-year -9 -1  
Contract jobs citing JavaScript 23 41 43
As % of all contract IT jobs advertised in Cardiff 7.01% 14.75% 12.91%
As % of the Programming Languages category 20.72% 28.28% 26.88%
Number of daily rates quoted 15 29 37
Median daily rate £350 £388 £310
Median daily rate % change year-on-year -9.67% +25.00%  
90% offered a daily rate of more than £303 £247 £195
10% offered a daily rate of more than £435 £513 £418
UK excluding London median daily rate £375 £360 £350
% change year-on-year +4.16% +3.00%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £43.45 £37.50 £39.78
% change year-on-year +15.85% -5.71%  

JavaScript is in the programming language skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Cardiff with a requirement for programming language skills.

Contract Programming Language Skills
Cardiff
Contract job vacancies with a requirement for programming language skills 111 145 160
As % of all contract IT job vacancies advertised in Cardiff 33.84% 52.16% 48.05%
Number of daily rates quoted 165 183 271
Median daily rate £365 £375 £350
Median daily rate % change year-on-year -2.66% +7.14%  
90% offered a daily rate of more than £303 £208 £200
10% offered a daily rate of more than £450 £513 £450
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 9 1 3
Median hourly rate £36.50 £13.50 £17.50
Median hourly rate % change year-on-year +170.37% -22.85%  
UK excluding London median hourly rate £42.50 £37.00 £37.00
% change year-on-year +14.86% -  

JavaScript
Job Vacancy Trend in Cardiff

Job postings citing JavaScript as a percentage of all IT jobs advertised in Cardiff.

Job vacancy trend for JavaScript in Cardiff

JavaScript
Contractor Daily Rate Trend in Cardiff

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing JavaScript in Cardiff.

Contractor daily rate trend for JavaScript in Cardiff

JavaScript
Contractor Daily Rate Histogram in Cardiff

The daily rate distribution of IT jobs citing JavaScript in Cardiff over the 3 months to 28 June 2017.

Contractor daily rate histogram for JavaScript in Cardiff

JavaScript
Contractor Hourly Rate Trend in Cardiff

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing JavaScript in Cardiff.

Contractor hourly rate trend for JavaScript in Cardiff

For the 6 months to 28 June 2017, IT contractor jobs citing JavaScript also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Cardiff region with a requirement for JavaScript.

1 46 (85.19%) HTML
2 43 (79.63%) CSS
3 36 (66.67%) HTML5
4 31 (57.41%) CSS3
5 25 (46.30%) jQuery
6 24 (44.44%) Agile Software Development
6 24 (44.44%) AngularJS
7 23 (42.59%) Ajax
8 19 (35.19%) Web Development
9 16 (29.63%) Front End Development
10 13 (24.07%) C#
11 12 (22.22%) SQL
11 12 (22.22%) .NET
11 12 (22.22%) TDD
12 11 (20.37%) Git (software)
12 11 (20.37%) Sass
13 10 (18.52%) React
13 10 (18.52%) PHP
14 9 (16.67%) Continuous Integration
14 9 (16.67%) User Experience
15 8 (14.81%) Responsive Web Design
15 8 (14.81%) Twitter Bootstrap
15 8 (14.81%) Node.js
15 8 (14.81%) KnockoutJS
15 8 (14.81%) Zend
15 8 (14.81%) RESTful
15 8 (14.81%) MySQL
15 8 (14.81%) ASP.NET
16 7 (12.96%) XML
16 7 (12.96%) Apache

JavaScript
Co-occurring IT Skills in Cardiff by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 7 (12.96%) Apache
2 3 (5.56%) CMS
2 3 (5.56%) SharePoint
3 2 (3.70%) Confluence
3 2 (3.70%) Drupal
3 2 (3.70%) Sitecore CMS
4 1 (1.85%) Adobe Experience Manager
4 1 (1.85%) Elasticsearch
4 1 (1.85%) IIS
4 1 (1.85%) Jetty
4 1 (1.85%) Mongrel
4 1 (1.85%) nginx
4 1 (1.85%) Oracle HTTP Server
4 1 (1.85%) SharePoint 2013
4 1 (1.85%) Tomcat
4 1 (1.85%) WebLogic
4 1 (1.85%) WebSphere
Applications
1 1 (1.85%) Photoshop
Business Applications
1 1 (1.85%) Dynamics CRM
Cloud Services
1 3 (5.56%) Amazon AWS
1 3 (5.56%) Microsoft Azure
2 1 (1.85%) Amazon CloudWatch
2 1 (1.85%) Amazon EC2
2 1 (1.85%) Amazon ElastiCache
2 1 (1.85%) Amazon ELB
2 1 (1.85%) Amazon S3
2 1 (1.85%) Cloud Computing
2 1 (1.85%) Google App Engine
2 1 (1.85%) Google Cloud Platform
2 1 (1.85%) Route 53
2 1 (1.85%) Virtual Private Cloud
Communications & Networking
1 1 (1.85%) DHCP
1 1 (1.85%) DNS
1 1 (1.85%) DSL
1 1 (1.85%) FTP
1 1 (1.85%) HTTP
1 1 (1.85%) IPsec
1 1 (1.85%) SSL
1 1 (1.85%) TCP/IP
Database & Business Intelligence
1 8 (14.81%) MySQL
2 5 (9.26%) SQL Server
3 2 (3.70%) MongoDB
3 2 (3.70%) SQL Server 2005
4 1 (1.85%) Amazon DynamoDB
4 1 (1.85%) Couchbase
4 1 (1.85%) NoSQL
4 1 (1.85%) SQL Server 2008
4 1 (1.85%) SQL Server 2012
Development Applications
1 11 (20.37%) Git (software)
2 4 (7.41%) Jenkins
3 3 (5.56%) Cucumber
3 3 (5.56%) Selenium
4 2 (3.70%) gulp
4 2 (3.70%) Jasmine
4 2 (3.70%) JIRA
4 2 (3.70%) Visual Studio
4 2 (3.70%) WebDriver
5 1 (1.85%) Babel
5 1 (1.85%) Grunt
5 1 (1.85%) JUnit
5 1 (1.85%) MbUnit
5 1 (1.85%) MSTest
5 1 (1.85%) NUnit
5 1 (1.85%) Protractor
5 1 (1.85%) SpecFlow
5 1 (1.85%) Subversion
5 1 (1.85%) Travis CI
5 1 (1.85%) webpack
General
1 2 (3.70%) Advertising
1 2 (3.70%) Banking
1 2 (3.70%) Telecoms
2 1 (1.85%) Finance
2 1 (1.85%) Investment Banking
2 1 (1.85%) Marketing
Job Titles
1 48 (88.89%) Developer
2 12 (22.22%) Front End Developer (Client-Side Developer)
3 10 (18.52%) Web Developer
4 8 (14.81%) PHP Developer
4 8 (14.81%) PHP Zend Developer
5 7 (12.96%) Angular Developer
6 6 (11.11%) .NET Developer
7 5 (9.26%) PHP Web Developer
8 4 (7.41%) HTML CSS Developer
8 4 (7.41%) HTML Developer
9 3 (5.56%) Senior Developer
9 3 (5.56%) ServiceNow Developer
9 3 (5.56%) Software Engineer
10 2 (3.70%) Drupal Developer
10 2 (3.70%) Front End Web Developer (Client-Side Developer)
10 2 (3.70%) Java Developer
10 2 (3.70%) Sitecore Developer
11 1 (1.85%) CRM Developer
11 1 (1.85%) Java Engineer
11 1 (1.85%) Mobile Applications Developer
Libraries, Frameworks & Software Standards
1 46 (85.19%) HTML
2 43 (79.63%) CSS
3 36 (66.67%) HTML5
4 31 (57.41%) CSS3
5 25 (46.30%) jQuery
6 24 (44.44%) AngularJS
7 23 (42.59%) Ajax
8 12 (22.22%) .NET
9 11 (20.37%) Sass
10 10 (18.52%) React
11 8 (14.81%) ASP.NET
11 8 (14.81%) KnockoutJS
11 8 (14.81%) Node.js
11 8 (14.81%) RESTful
11 8 (14.81%) Twitter Bootstrap
12 7 (12.96%) XML
13 6 (11.11%) LAMP
13 6 (11.11%) Zend Framework
14 5 (9.26%) Backbone.js
14 5 (9.26%) Durandal
Miscellaneous
1 9 (16.67%) User Experience
2 5 (9.26%) Client/Server
3 4 (7.41%) CMDB
4 3 (5.56%) Greenfield Project
5 2 (3.70%) W3C
6 1 (1.85%) Computer Science
6 1 (1.85%) Digital Media
6 1 (1.85%) Fintech
Operating Systems
1 1 (1.85%) Android
1 1 (1.85%) Linux
1 1 (1.85%) Windows
Processes & Methodologies
1 24 (44.44%) Agile Software Development
2 19 (35.19%) Web Development
3 16 (29.63%) Front End Development
4 12 (22.22%) TDD
5 9 (16.67%) Continuous Integration
6 8 (14.81%) Responsive Web Design
7 7 (12.96%) BDD
7 7 (12.96%) MVC
7 7 (12.96%) Test Scripting
7 7 (12.96%) Web Design
8 6 (11.11%) DevOps
8 6 (11.11%) OOP
8 6 (11.11%) Wireframes
9 5 (9.26%) Cross-Browser Compatibility
9 5 (9.26%) Scrum
9 5 (9.26%) Workflow
10 4 (7.41%) Asset Management
10 4 (7.41%) Problem Management
10 4 (7.41%) Release Management
10 4 (7.41%) Software Engineering
Programming Languages
1 13 (24.07%) C#
2 12 (22.22%) SQL
3 10 (18.52%) PHP
4 7 (12.96%) Java
5 4 (7.41%) T-SQL
6 3 (5.56%) C++
6 3 (5.56%) Python
7 2 (3.70%) TypeScript
8 1 (1.85%) Groovy
8 1 (1.85%) Korn
8 1 (1.85%) Perl
8 1 (1.85%) VB.NET
Qualifications
1 5 (9.26%) Security Cleared
2 3 (5.56%) ITIL Certification
3 1 (1.85%) BPSS Clearance
3 1 (1.85%) Degree
3 1 (1.85%) Master's Degree
3 1 (1.85%) SC Cleared
Quality Assurance & Compliance
1 1 (1.85%) Disclosure Scotland
1 1 (1.85%) QA
1 1 (1.85%) WAI
1 1 (1.85%) WCAG
System Software
1 6 (11.11%) Docker
2 1 (1.85%) VMware Infrastructure
2 1 (1.85%) Xen
Systems Management
1 1 (1.85%) Ansible
1 1 (1.85%) Fluentd
1 1 (1.85%) Grafana
1 1 (1.85%) Kibana
1 1 (1.85%) Marathon
1 1 (1.85%) Mesos
1 1 (1.85%) Prometheus
1 1 (1.85%) Puppet
1 1 (1.85%) Rundeck
1 1 (1.85%) Terraform
Vendors
1 8 (14.81%) Zend
2 7 (12.96%) Adobe
3 6 (11.11%) Microsoft
4 5 (9.26%) ServiceNow
5 2 (3.70%) Sitecore
6 1 (1.85%) Google
6 1 (1.85%) Oracle
6 1 (1.85%) VMware